| Literature DB >> 34878934 |
Xincheng Yao1,2, Taeyoon Son1, Jiechao Ma1.
Abstract
A portable, low cost, widefield fundus camera is essential for developing affordable teleophthalmology. However, conventional trans-pupillary illumination used in traditional fundus cameras limits the field of view (FOV) in a snapshot image, and frequently requires pharmacologically pupillary dilation for reliable examination of eye conditions. This minireview summarizes recent developments in alternative illumination approaches for widefield fundus photography. Miniaturized indirect illumination has been used to enable compact design for developing low cost, portable, widefield fundus camera. Contact mode trans-pars-planar illumination has been validated for ultra-widefield fundus imaging of infant eyes. Contact-free trans-pars-planar illumination has been explored for widefield imaging of adult eyes. Trans-palpebral illumination has been also demonstrated in a smartphone-based widefield fundus imager to foster affordable teleophthalmology.Entities:
Keywords: Fundus camera; choroid; eye; fundus photography; ophthalmology; retina
Mesh：
Year: 2021 PMID： 34878934 PMCID： PMC8899340 DOI： 10.1177/15353702211063477
Source DB: PubMed Journal: Exp Biol Med (Maywood) ISSN： 1535-3699